Abstract
While the behavior of solid C 60 upon doping has been extensively investigated, very little is known about the compounds based on C 70 , the next stable fullerene. The aim of this paper is to compare the potential capacities of both fullerenes to form intercalation compounds and to refer the recent achievements in the C 70 intercalation, both spontaneous (oxygen diffusion from the atmosphere) and induced (by pressure of alkali metal vapors or the applied electric field).